| 摘要 |
The present invention relates to a bridge navigational watch alarm system using USN. The bridge navigational watch alarm system using USN according to the present invention comprises: a reset unit to allow a worker to input a reset signal in various forms; a portable alarm device to warn the worker through a vibration signal or an audible signal if input time of the reset signal elapses; a motion detection sensor to detect a movement of the worker; an alarm device which notifies the worker of an input moment of the reset signal visually or audibly, and outputs a visual signal or an audible signal to warn the worker if input waiting time which is the input time of the reset signal elapses; and a main controller unit which counts a prescribed monitoring period during which the worker inputs the reset signal into the reset unit, counts the input waiting time, controls the alarm device and the portable alarm device to warn the worker to input the reset signal, and is electrically connected to the motion detection sensor to stop warning of the alarm device and the portable alarm device and count the prescribed monitoring period again if a movement of the worker is detected. |
